apicheats.dev github/llms.txt Raw .md
GET

GET /repos/{owner}/{repo}/compare/{basehead} — GitHub API

GitHub token (required); https://api.github.com

GitHub API

Compare two commits

Base URL
https://api.github.com
Auth
Authorization: Bearer <GITHUB_API_KEY>
Last verified
2026-10-20 · upstream hash matched
Actions Try in browser→
Agents: curl -H "Accept: text/markdown" this URL
→ 289 tokens · Vary: Accept

Critical gotchas

GitHub recommends an Accept: application/vnd.github+json header and an explicit X-GitHub-Api-Version header.

Fine-grained tokens only authorize repositories and permissions selected when the token is created.

cURL

curl -X GET 'https://api.github.com/repos/example-owner/example-repo/compare/example-basehead?page=1&per_page=30' \  -H "Authorization: Bearer $GITHUB_TOKEN" \  -H 'Accept: application/vnd.github+json' \  -H 'X-GitHub-Api-Version: 2026-03-10'

Parameters

Name In Type Required Description
owner path string Yes The account owner of the repository. The name is not case sensitive.
repo path string Yes The name of the repository without the `.git` extension. The name is not case sensitive.
page query integer No The page number of the results to fetch. For more information, see "[Using pagination in the REST API](https://docs.github.com/rest/using-the-rest-api/using-pagination-in-the-rest-api)."
per_page query integer No The number of results per page (max 100). For more information, see "[Using pagination in the REST API](https://docs.github.com/rest/using-the-rest-api/using-pagination-in-the-rest-api)."
basehead path string Yes The base branch and head branch to compare. This parameter expects the format `BASE...HEAD`. Both must be branch names in `repo`. To compare with a branch that exists in a different repository in the same network as `repo`, the `basehead` parameter expects the format `USERNAME:BASE...USERNAME:HEAD`.

Response 200 OK

{
  "url": "https://api.github.com/repos/octocat/Hello-World/compare/master...topic",
  "html_url": "https://github.com/octocat/Hello-World/compare/master...topic",
  "permalink_url": "https://github.com/octocat/Hello-World/compare/octocat:bbcd538c8e72b8c175046e27cc8f907076331401...octocat:0328041d1152db8ae77652d1618a02e57f745f17",
  "diff_url": "https://github.com/octocat/Hello-World/compare/master...topic.diff",
  "patch_url": "https://github.com/octocat/Hello-World/compare/master...topic.patch",
  "base_commit": {
    "url": "https://api.github.com/repos/octocat/Hello-World/commits/6dcb09b5b57875f334f61aebed695e2e4193db5e",
    "sha": "6dcb09b5b57875f334f61aebed695e2e4193db5e",
    "node_id": "MDY6Q29tbWl0NmRjYjA5YjViNTc4NzVmMzM0ZjYxYWViZWQ2OTVlMmU0MTkzZGI1ZQ==",
    "html_url": "https://github.com/octocat/Hello-World/commit/6dcb09b5b57875f334f61aebed695e2e4193db5e",
    "comments_url": "https://api.github.com/repos/octocat/Hello-World/commits/6dcb09b5b57875f334f61aebed695e2e4193db5e/comments",
    "commit": {
      "url": "https://api.github.com/repos/octocat/Hello-World/commits/6dcb09b5b57875f334f61aebed695e2e4193db5e",
      "author": {
        "name": "\"Chris Wanstrath\"",
        "email": "\"[email protected]\"",
        "date": "\"2007-10-29T02:42:39.000-07:00\""
      },
      "committer": {
        "name": "\"Chris Wanstrath\"",
        "email": "\"[email protected]\"",
        "date": "\"2007-10-29T02:42:39.000-07:00\""
      },
      "message": "Fix all the bugs",
      "comment_count": 0,
      "tree": {
        "sha": "827efc6d56897b048c772eb4087f854f46256132",
        "url": "https://api.github.com/repos/octocat/Hello-World/tree/827efc6d56897b048c772eb4087f854f46256132"
      },
      "verification": {
        "verified": true,
        "reason": "string",
        "payload": "string",
        "signature": "string",
        "verified_at": "string"
      }
    },
    "author": {
      "name": "string",
      "email": "string",
      "login": "octocat",
      "id": 1,
      "node_id": "MDQ6VXNlcjE=",
      "avatar_url": "https://github.com/images/error/octocat_happy.gif",
      "gravatar_id": "41d064eb2195891e12d0413f63227ea7",
      "url": "https://api.github.com/users/octocat",
      "html_url": "https://github.com/octocat",
      "followers_url": "https://api.github.com/users/octocat/followers",
      "following_url": "https://api.github.com/users/octocat/following{/other_user}",
      "gists_url": "https://api.github.com/users/octocat/gists{/gist_id}",
      "starred_url": "https://api.github.com/users/octocat/starred{/owner}{/repo}",
      "subscriptions_url": "https://api.github.com/users/octocat/subscriptions",
      "organizations_url": "https://api.github.com/users/octocat/orgs",
      "repos_url": "https://api.github.com/users/octocat/repos",
      "events_url": "https://api.github.com/users/octocat/events{/privacy}",
      "received_events_url": "https://api.github.com/users/octocat/received_events",
      "type": "User",
      "site_admin": true,
      "starred_at": "\"2020-07-09T00:17:55Z\"",
      "user_view_type": "public"
    },
    "committer": {
      "name": "string",
      "email": "string",
      "login": "octocat",
      "id": 1,
      "node_id": "MDQ6VXNlcjE=",
      "avatar_url": "https://github.com/images/error/octocat_happy.gif",
      "gravatar_id": "41d064eb2195891e12d0413f63227ea7",
      "url": "https://api.github.com/users/octocat",
      "html_url": "https://github.com/octocat",
      "followers_url": "https://api.github.com/users/octocat/followers",
      "following_url": "https://api.github.com/users/octocat/following{/other_user}",
      "gists_url": "https://api.github.com/users/octocat/gists{/gist_id}",
      "starred_url": "https://api.github.com/users/octocat/starred{/owner}{/repo}",
      "subscriptions_url": "https://api.github.com/users/octocat/subscriptions",
      "organizations_url": "https://api.github.com/users/octocat/orgs",
      "repos_url": "https://api.github.com/users/octocat/repos",
      "events_url": "https://api.github.com/users/octocat/events{/privacy}",
      "received_events_url": "https://api.github.com/users/octocat/received_events",
      "type": "User",
      "site_admin": true,
      "starred_at": "\"2020-07-09T00:17:55Z\"",
      "user_view_type": "public"
    },
    "parents": [
      {
        "sha": "7638417db6d59f3c431d3e1f261cc637155684cd",
        "url": "https://api.github.com/repos/octocat/Hello-World/commits/7638417db6d59f3c431d3e1f261cc637155684cd",
        "html_url": "https://github.com/octocat/Hello-World/commit/7638417db6d59f3c431d3e1f261cc637155684cd"
      }
    ],
    "stats": {
      "additions": 0,
      "deletions": 0,
      "total": 0
    },
    "files": [
      {
        "sha": "bbcd538c8e72b8c175046e27cc8f907076331401",
        "filename": "file1.txt",
        "status": "added",
        "additions": 103,
        "deletions": 21,
        "changes": 124,
        "blob_url": "https://github.com/octocat/Hello-World/blob/6dcb09b5b57875f334f61aebed695e2e4193db5e/file1.txt",
        "raw_url": "https://github.com/octocat/Hello-World/raw/6dcb09b5b57875f334f61aebed695e2e4193db5e/file1.txt",
        "contents_url": "https://api.github.com/repos/octocat/Hello-World/contents/file1.txt?ref=6dcb09b5b57875f334f61aebed695e2e4193db5e",
        "patch": "@@ -132,7 +132,7 @@ module Test @@ -1000,7 +1000,7 @@ module Test",
        "previous_filename": "file.txt"
      }
    ]
  },
  "merge_base_commit": {
    "url": "https://api.github.com/repos/octocat/Hello-World/commits/6dcb09b5b57875f334f61aebed695e2e4193db5e",
    "sha": "6dcb09b5b57875f334f61aebed695e2e4193db5e",
    "node_id": "MDY6Q29tbWl0NmRjYjA5YjViNTc4NzVmMzM0ZjYxYWViZWQ2OTVlMmU0MTkzZGI1ZQ==",
    "html_url": "https://github.com/octocat/Hello-World/commit/6dcb09b5b57875f334f61aebed695e2e4193db5e",
    "comments_url": "https://api.github.com/repos/octocat/Hello-World/commits/6dcb09b5b57875f334f61aebed695e2e4193db5e/comments",
    "commit": {
      "url": "https://api.github.com/repos/octocat/Hello-World/commits/6dcb09b5b57875f334f61aebed695e2e4193db5e",
      "author": {
        "name": "\"Chris Wanstrath\"",
        "email": "\"[email protected]\"",
        "date": "\"2007-10-29T02:42:39.000-07:00\""
      },
      "committer": {
        "name": "\"Chris Wanstrath\"",
        "email": "\"[email protected]\"",
        "date": "\"2007-10-29T02:42:39.000-07:00\""
      },
      "message": "Fix all the bugs",
      "comment_count": 0,
      "tree": {
        "sha": "827efc6d56897b048c772eb4087f854f46256132",
        "url": "https://api.github.com/repos/octocat/Hello-World/tree/827efc6d56897b048c772eb4087f854f46256132"
      },
      "verification": {
        "verified": true,
        "reason": "string",
        "payload": "string",
        "signature": "string",
        "verified_at": "string"
      }
    },
    "author": {
      "name": "string",
      "email": "string",
      "login": "octocat",
      "id": 1,
      "node_id": "MDQ6VXNlcjE=",
      "avatar_url": "https://github.com/images/error/octocat_happy.gif",
      "gravatar_id": "41d064eb2195891e12d0413f63227ea7",
      "url": "https://api.github.com/users/octocat",
      "html_url": "https://github.com/octocat",
      "followers_url": "https://api.github.com/users/octocat/followers",
      "following_url": "https://api.github.com/users/octocat/following{/other_user}",
      "gists_url": "https://api.github.com/users/octocat/gists{/gist_id}",
      "starred_url": "https://api.github.com/users/octocat/starred{/owner}{/repo}",
      "subscriptions_url": "https://api.github.com/users/octocat/subscriptions",
      "organizations_url": "https://api.github.com/users/octocat/orgs",
      "repos_url": "https://api.github.com/users/octocat/repos",
      "events_url": "https://api.github.com/users/octocat/events{/privacy}",
      "received_events_url": "https://api.github.com/users/octocat/received_events",
      "type": "User",
      "site_admin": true,
      "starred_at": "\"2020-07-09T00:17:55Z\"",
      "user_view_type": "public"
    },
    "committer": {
      "name": "string",
      "email": "string",
      "login": "octocat",
      "id": 1,
      "node_id": "MDQ6VXNlcjE=",
      "avatar_url": "https://github.com/images/error/octocat_happy.gif",
      "gravatar_id": "41d064eb2195891e12d0413f63227ea7",
      "url": "https://api.github.com/users/octocat",
      "html_url": "https://github.com/octocat",
      "followers_url": "https://api.github.com/users/octocat/followers",
      "following_url": "https://api.github.com/users/octocat/following{/other_user}",
      "gists_url": "https://api.github.com/users/octocat/gists{/gist_id}",
      "starred_url": "https://api.github.com/users/octocat/starred{/owner}{/repo}",
      "subscriptions_url": "https://api.github.com/users/octocat/subscriptions",
      "organizations_url": "https://api.github.com/users/octocat/orgs",
      "repos_url": "https://api.github.com/users/octocat/repos",
      "events_url": "https://api.github.com/users/octocat/events{/privacy}",
      "received_events_url": "https://api.github.com/users/octocat/received_events",
      "type": "User",
      "site_admin": true,
      "starred_at": "\"2020-07-09T00:17:55Z\"",
      "user_view_type": "public"
    },
    "parents": [
      {
        "sha": "7638417db6d59f3c431d3e1f261cc637155684cd",
        "url": "https://api.github.com/repos/octocat/Hello-World/commits/7638417db6d59f3c431d3e1f261cc637155684cd",
        "html_url": "https://github.com/octocat/Hello-World/commit/7638417db6d59f3c431d3e1f261cc637155684cd"
      }
    ],
    "stats": {
      "additions": 0,
      "deletions": 0,
      "total": 0
    },
    "files": [
      {
        "sha": "bbcd538c8e72b8c175046e27cc8f907076331401",
        "filename": "file1.txt",
        "status": "added",
        "additions": 103,
        "deletions": 21,
        "changes": 124,
        "blob_url": "https://github.com/octocat/Hello-World/blob/6dcb09b5b57875f334f61aebed695e2e4193db5e/file1.txt",
        "raw_url": "https://github.com/octocat/Hello-World/raw/6dcb09b5b57875f334f61aebed695e2e4193db5e/file1.txt",
        "contents_url": "https://api.github.com/repos/octocat/Hello-World/contents/file1.txt?ref=6dcb09b5b57875f334f61aebed695e2e4193db5e",
        "patch": "@@ -132,7 +132,7 @@ module Test @@ -1000,7 +1000,7 @@ module Test",
        "previous_filename": "file.txt"
      }
    ]
  },
  "status": "ahead",
  "ahead_by": 4,
  "behind_by": 5,
  "total_commits": 6,
  "commits": [
    {
      "url": "https://api.github.com/repos/octocat/Hello-World/commits/6dcb09b5b57875f334f61aebed695e2e4193db5e",
      "sha": "6dcb09b5b57875f334f61aebed695e2e4193db5e",
      "node_id": "MDY6Q29tbWl0NmRjYjA5YjViNTc4NzVmMzM0ZjYxYWViZWQ2OTVlMmU0MTkzZGI1ZQ==",
      "html_url": "https://github.com/octocat/Hello-World/commit/6dcb09b5b57875f334f61aebed695e2e4193db5e",
      "comments_url": "https://api.github.com/repos/octocat/Hello-World/commits/6dcb09b5b57875f334f61aebed695e2e4193db5e/comments",
      "commit": {
        "url": "https://api.github.com/repos/octocat/Hello-World/commits/6dcb09b5b57875f334f61aebed695e2e4193db5e",
        "author": {
          "name": "\"Chris Wanstrath\"",
          "email": "\"[email protected]\"",
          "date": "\"2007-10-29T02:42:39.000-07:00\""
        },
        "committer": {
          "name": "\"Chris Wanstrath\"",
          "email": "\"[email protected]\"",
          "date": "\"2007-10-29T02:42:39.000-07:00\""
        },
        "message": "Fix all the bugs",
        "comment_count": 0,
        "tree": {
          "sha": "827efc6d56897b048c772eb4087f854f46256132",
          "url": "https://api.github.com/repos/octocat/Hello-World/tree/827efc6d56897b048c772eb4087f854f46256132"
        },
        "verification": {
          "verified": true,
          "reason": "string",
          "payload": "string",
          "signature": "string",
          "verified_at": "string"
        }
      },
      "author": {
        "name": "string",
        "email": "string",
        "login": "octocat",
        "id": 1,
        "node_id": "MDQ6VXNlcjE=",
        "avatar_url": "https://github.com/images/error/octocat_happy.gif",
        "gravatar_id": "41d064eb2195891e12d0413f63227ea7",
        "url": "https://api.github.com/users/octocat",
        "html_url": "https://github.com/octocat",
        "followers_url": "https://api.github.com/users/octocat/followers",
        "following_url": "https://api.github.com/users/octocat/following{/other_user}",
        "gists_url": "https://api.github.com/users/octocat/gists{/gist_id}",
        "starred_url": "https://api.github.com/users/octocat/starred{/owner}{/repo}",
        "subscriptions_url": "https://api.github.com/users/octocat/subscriptions",
        "organizations_url": "https://api.github.com/users/octocat/orgs",
        "repos_url": "https://api.github.com/users/octocat/repos",
        "events_url": "https://api.github.com/users/octocat/events{/privacy}",
        "received_events_url": "https://api.github.com/users/octocat/received_events",
        "type": "User",
        "site_admin": true,
        "starred_at": "\"2020-07-09T00:17:55Z\"",
        "user_view_type": "public"
      },
      "committer": {
        "name": "string",
        "email": "string",
        "login": "octocat",
        "id": 1,
        "node_id": "MDQ6VXNlcjE=",
        "avatar_url": "https://github.com/images/error/octocat_happy.gif",
        "gravatar_id": "41d064eb2195891e12d0413f63227ea7",
        "url": "https://api.github.com/users/octocat",
        "html_url": "https://github.com/octocat",
        "followers_url": "https://api.github.com/users/octocat/followers",
        "following_url": "https://api.github.com/users/octocat/following{/other_user}",
        "gists_url": "https://api.github.com/users/octocat/gists{/gist_id}",
        "starred_url": "https://api.github.com/users/octocat/starred{/owner}{/repo}",
        "subscriptions_url": "https://api.github.com/users/octocat/subscriptions",
        "organizations_url": "https://api.github.com/users/octocat/orgs",
        "repos_url": "https://api.github.com/users/octocat/repos",
        "events_url": "https://api.github.com/users/octocat/events{/privacy}",
        "received_events_url": "https://api.github.com/users/octocat/received_events",
        "type": "User",
        "site_admin": true,
        "starred_at": "\"2020-07-09T00:17:55Z\"",
        "user_view_type": "public"
      },
      "parents": [
        {
          "sha": "7638417db6d59f3c431d3e1f261cc637155684cd",
          "url": "https://api.github.com/repos/octocat/Hello-World/commits/7638417db6d59f3c431d3e1f261cc637155684cd",
          "html_url": "https://github.com/octocat/Hello-World/commit/7638417db6d59f3c431d3e1f261cc637155684cd"
        }
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      "stats": {
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        "deletions": 0,
        "total": 0
      },
      "files": [
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          "status": "added",
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          "deletions": 21,
          "changes": 124,
          "blob_url": "https://github.com/octocat/Hello-World/blob/6dcb09b5b57875f334f61aebed695e2e4193db5e/file1.txt",
          "raw_url": "https://github.com/octocat/Hello-World/raw/6dcb09b5b57875f334f61aebed695e2e4193db5e/file1.txt",
          "contents_url": "https://api.github.com/repos/octocat/Hello-World/contents/file1.txt?ref=6dcb09b5b57875f334f61aebed695e2e4193db5e",
          "patch": "@@ -132,7 +132,7 @@ module Test @@ -1000,7 +1000,7 @@ module Test",
          "previous_filename": "file.txt"
        }
      ]
    }
  ],
  "files": [
    {
      "sha": "bbcd538c8e72b8c175046e27cc8f907076331401",
      "filename": "file1.txt",
      "status": "added",
      "additions": 103,
      "deletions": 21,
      "changes": 124,
      "blob_url": "https://github.com/octocat/Hello-World/blob/6dcb09b5b57875f334f61aebed695e2e4193db5e/file1.txt",
      "raw_url": "https://github.com/octocat/Hello-World/raw/6dcb09b5b57875f334f61aebed695e2e4193db5e/file1.txt",
      "contents_url": "https://api.github.com/repos/octocat/Hello-World/contents/file1.txt?ref=6dcb09b5b57875f334f61aebed695e2e4193db5e",
      "patch": "@@ -132,7 +132,7 @@ module Test @@ -1000,7 +1000,7 @@ module Test",
      "previous_filename": "file.txt"
    }
  ]
}
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